renewLock method
Renews a lock on a message that makes it invisible from other receivers in the _queue. This method is usually used to extend the message processing time. Important: This method is not supported by RabbitMQ. Parameters:
message
a message to extend its lock.lockTimeout
a locking timeout in milliseconds. Return Future that recive a null if all ok Throws error
Implementation
@override
Future renewLock(MessageEnvelope message, int lockTimeout) async {
// Operation is not supported
return null;
}